Curing agents for epoxy resins
US8063157B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 20, 2005 |
| Grant date | Nov 22, 2011 |
| Priority date | — |
| Expiry date | Aug 26, 2027 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G59/188
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Curing agent for epoxy resins, consisting of A) 1%-99% by weight of an adduct obtainable by reacting a1) a polyethylene polyamine having up to six nitrogens in the molecule with a2) a monoglycidyl ether, the adduct of a1) and a2) preferably being isolated by removal of the excess polyethylene polyamine, and B) 99%-1% by weight of an adduct obtainable by reacting b1) a diamine or polyamine with b2) styrene, and also curable compositions further comprising an epoxide compound, and the use of these curable compositions for producing moldings and sheetlike structures, and also for applications in the adhesives and sealants sector and for epoxy-resin mortars.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.